ide: add save/restore support for isa

/***********************************************************/

/* ISA IDE definitions */

typedef struct ISAIDEState {

    IDEBus *bus;

} ISAIDEState;

static void isa_ide_save(QEMUFile* f, void *opaque)

{

    ISAIDEState *s = opaque;

    idebus_save(f, s->bus);

    ide_save(f, &s->bus->ifs[0]);

    ide_save(f, &s->bus->ifs[1]);

}

static int isa_ide_load(QEMUFile* f, void *opaque, int version_id)

{

    ISAIDEState *s = opaque;

    idebus_load(f, s->bus, version_id);

    ide_load(f, &s->bus->ifs[0], version_id);

    ide_load(f, &s->bus->ifs[1], version_id);

    return 0;

}

void isa_ide_init(int iobase, int iobase2, qemu_irq irq,

                  BlockDriverState *hd0, BlockDriverState *hd1)

{

    IDEBus *bus;

    ISAIDEState *s;

    bus = qemu_mallocz(sizeof(*bus));

    s = qemu_mallocz(sizeof(*s));

    s->bus = qemu_mallocz(sizeof(IDEBus));

    ide_init2(bus, hd0, hd1, irq);

    ide_init_ioport(bus, iobase, iobase2);

    ide_init2(s->bus, hd0, hd1, irq);

    ide_init_ioport(s->bus, iobase, iobase2);

    register_savevm("isa-ide", 0, 3, isa_ide_save, isa_ide_load, s);

}